The device functions as a probe extension for low-voltage voltage detectors used in 0.4 kV overhead power line networks. It enables voltage detection on 0.4 kV electrical equipment located further from the pole when used in conjunction with a compatible voltage detector.
The use of this device qualifies as a measurement and inspection activity. Therefore, it may be operated by trained or instructed personnel in electrical environments or by untrained individuals under the direct supervision and guidance of a qualified professional.